It may not be the most important technology aide for the classroom, but it could be one of the coolest. 3D-enabled projectors are promising to take presentation into the next dimension.

Before you go all goo-goo-gah-gah over these things, here me out.

I saw a demo of a 3D display a few years ago in one of our districts. I had a bad seat (although I was only

The picture above sums it up for me and should be fair warning for what might happen if we outfit classrooms with red and blue glasses... more disengaged, lethargic, and passive students.

Now, I don't know about you, but I don't think that's what we should be looking at.